Question about Acer NSK8458AN Keyboard

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My question mark key is not functioning.. eventhough i press shift with it. i dunno what's haapening

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Keyboards are so inexpensive that most folks just but another one. You can remove the caps and set them in an orderly fashion on a towel. Then you inspect and clean the switches underneath. Unfortunately, many keyboards are not made to come apart.

Posted on Mar 23, 2011

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Posted on Jan 02, 2017

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NCr and nPr


Look your calculator in the face. Find two keys one marked nPr, the other nCr. There is third key nearby with the exclamation mark (n! or x!)
If the markings nPr, nCr,n! ARE ON THE KEYS, you do not need to press [2nd F] or [SHIFT] to access the functions.
If the markings are on the face plate of calculator you must press [2nd F] or [SHIFT] then the appropriate key.
To calculate 10P3 you enter 10, press [nPr] or [SHIFT] (nPr), enter 3 and press [= or EXE]

Mar 11, 2014 | Canon F604 Scientific Calculator

1 Answer

I managed to lock my FN key and i dunno how to unlock it. Please help


Function Keys can be unlocked by using combination of Function (FN) key and any other key. Generally they are the F keys right on the top from F1 to F12.

Most often the following combinations work:

1) Fn + F6
2) Fn + Num Lock
3) Holding Fn for a while
4) Fn + F8
5) Ctrl + Fn
6) Shift + Fn

Please, all most at all times the function keys from F1 to F12 are marked and indicated about what they do. The marking is pointed by a small icon just under the name of the Function key.

Oct 24, 2012 | MSI Computers & Internet

2 Answers

How to turn on the exponent function on TI- 83 plus


If you want an exponent of ten, use the EE keypad for your problem. On the other hand to raise a number to an exponent use ^ keypad generally.
See captured images below


4_10_2012_7_56_00_pm.jpg


4_10_2012_7_56_28_pm.jpg

Apr 10, 2012 | Texas Instruments TI-83 Plus Calculator

2 Answers

How to turn on the exponent function on TI- 83 plus


If you want an exponent of ten, use the EE keypad for your problem. On the other hand to raise a number to an exponent use ^ keypad generally.
See captured images below


4_10_2012_7_56_00_pm.jpg


4_10_2012_7_56_28_pm.jpg

Apr 10, 2012 | Texas Instruments TI-83 Plus Calculator

1 Answer

Where is the antilog


The antilog ( Oh I hate this word) is the inverse function of the log. If you are talking about base 10 log (common logarithms) the antilog is the power of 10 function.( 10^x) If you are talking about the natural log (ln) the antilog is the exponential function e^x.
On most calculators, a mathematical function and its inverse share the same physical key. One function is marked on the key and the inverse on the faceplate. One is accessed directly by pressing the marked key, and its inverse is accessed by pressing 2ndF, 2nd of SHIFT followed by the key.
I hope it helps you find the appropriate key on your brand of calculator (whatever it might be.)

Mar 27, 2012 | Office Equipment & Supplies

1 Answer

How do you use the -log function on the TI-30XA calculator? I downloaded the manual and there is no instruction for finding the -log of a number


Do you mean the antilog? For the common antilog, use the shifted function of the LOG key (marked 10^x). For the natural antilog, use the shifted function of the LN key (marked e^x).

For example, to calculate the common antilog of 0.5, press . 5 SHIFT [10^x] = and get about 3.16. To calculate the natural antilog of 0.5, press . 5 SHIFT [e^x] = and get about 1.65.

Mar 29, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

My casio s/c fx83ES does not have an INV button. Can you help me


I depends on what you mean by INV.
On some Chinese (AUREX, Staples) calculators the second function key is marked as INV. If that is the key you have in mind, on Casios it is the [SHIFT] key. On Sharps it is marked as [2ndF]

If you have in mind the multiplicative inverse (the reciprocal) then your calculator has such a key and it is marked [x^-1]. It the key represented on the following table at the intersection of the 2nd column and the 9th line (RECIPROCAL)

dc4ae01.jpg

If you are thinking about the inverse of functions, then know that each function shares the same physical key as its inverse. For example to access the arcsine (the function inverse of sine) you press the [SHIFT] key before [SIN]. On the calculator you will notice that near the [SIN] key and to its left there is [SIN^-1].

Aug 24, 2010 | Sharp EL-531VB Calculator

1 Answer

The word "off" is above the red button AC. I press it, nothing happens-a cursor keeps flashing and the figure 0. is showing


If you want the All Clear function, press the AC key. If you want to turn the calculator off, press SHIFT then AC. The functions marked above the keys are the shifted functions of that key.

Apr 02, 2010 | Casio FX-9750GPlus Calculator

1 Answer

Cannot access question mark key


Hi,
Have u ever know about the windows "sticky key". ur problem will occur if u press the shift key for a bit long or press it for 5 times.

what actually u guys are facing is a windows functionality.
go to control panel -> accessibility options
changes the settings for sticky keys, filter keys and toggle keys... disable it if u don't want the functionality.

Jan 28, 2010 | Acer Aspire One PC Notebook

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